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adelina 88 [10]
2 years ago
8

A concession stand sold ice cream cones, salted pretzels, and tacos at a basketball game. Ice cream cones were sold for $3.00, s

alted pretzels were sold for $2.50, and tacos were sold for $2.00. The total number of ice cream cones, salted pretzels, and tacos sold was 140, and the total amount of money from these items was $359.50. If $70.00 was made just from selling tacos, how many salted pretzels were sold?
Mathematics
1 answer:
Nikitich [7]2 years ago
4 0
I’m so hungry gurlll like stop playinn
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Store a sells jeans for 7/8 of the Price at store b.
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Answer:

$5

Step-by-step explanation:

Let the price of jeans at store b be $x.

Let the price of jeans at store a be $7x/8.

But the price of jeans at store a is $35.

Hence 7x/8 = 35

And therefore x = 40

5 0
3 years ago
Can someone please help me with this? thank u so much ​
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Step-by-step explanation:

The perimeter of a triangle is calculated by adding all three side lengths together

That means x + 3 + x + 4 + x + 1 = 17 add the like terms

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CD = x + 4 ➡ 7

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3 years ago
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Valentin [98]

Answer 20 are left

Step-by-step explanation:

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Lelechka [254]
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(sin x)(tan x cos x - cot x cos x) = 1 - 2 cos2x
Aliun [14]
As

\tan x=\dfrac{\sin x}{\cos x}
\cot x=\dfrac{\cos x}{\sin x}

we have

\sin x(\tan x\cos x-\cot x\cos x)=\sin x\left(\sin x-\dfrac{\cos^2x}{\sin x}\right)=\sin^2x-\cos^2x

Recalling that \cos2x=\cos^2x-\sin^2x, we end up with

-\cos2x=1-2\cos2x
1=\cos2x
\implies2x=2n\pi

(where n is any integer)

\implies x=n\pi
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